The Screw,assembled Washer, cataloged under National Stock Number 5305-00-064-8445, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-064-8445 |
| Item Name | Screw,assembled Washer |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN |
| Fastener Length | 0.250 INCHES NOMINAL IN |
| Primary Washer Outside Diameter | 0.258 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN |
| Thread Length | 0.232 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.125 INCHES IN |
| Head Style | FILLISTER |
| Primary Washer Style | FLAT EXTERNAL TEETH |
| Thread Direction | RIGHT-HAND |
| Primary Washer Material Thickness | 0.018 INCHES NOMINAL IN |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Washer Quantity | 1 |
| Head Diameter | 0.187 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 732303-7 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 732303-7 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5305-00-064-8445 is a Screw,assembled Washer, classified under FSC 5305, Screws. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2520-00-732-3037. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-00-064-8445: Head Height: 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN; Fastener Length: 0.250 INCHES NOMINAL IN; Primary Washer Outside Diameter: 0.258 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN; Thread Length: 0.232 INCHES MINIMUM IN. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.